diff --git a/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp b/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
index aedbf51..5e150be 100644
--- a/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
+++ b/llvm/lib/Target/PowerPC/PPCVSXFMAMutate.cpp
@@ -126,7 +126,7 @@
         if (!AddendMI->isFullCopy())
           continue;
 
-        unsigned AddendSrcReg = AddendMI->getOperand(1).getReg();
+        Register AddendSrcReg = AddendMI->getOperand(1).getReg();
         if (Register::isVirtualRegister(AddendSrcReg)) {
           if (MRI.getRegClass(AddendMI->getOperand(0).getReg()) !=
               MRI.getRegClass(AddendSrcReg))
@@ -182,12 +182,12 @@
         //   %5 = A-form-op %5, %5, %11;
         // where %5 and %11 are both kills. This case would be skipped
         // otherwise.
-        unsigned OldFMAReg = MI.getOperand(0).getReg();
+        Register OldFMAReg = MI.getOperand(0).getReg();
 
         // Find one of the product operands that is killed by this instruction.
         unsigned KilledProdOp = 0, OtherProdOp = 0;
-        unsigned Reg2 = MI.getOperand(2).getReg();
-        unsigned Reg3 = MI.getOperand(3).getReg();
+        Register Reg2 = MI.getOperand(2).getReg();
+        Register Reg3 = MI.getOperand(3).getReg();
         if (LIS->getInterval(Reg2).Query(FMAIdx).isKill()
             && Reg2 != OldFMAReg) {
           KilledProdOp = 2;
@@ -214,8 +214,8 @@
 
         // Transform: (O2 * O3) + O1 -> (O2 * O1) + O3.
 
-        unsigned KilledProdReg = MI.getOperand(KilledProdOp).getReg();
-        unsigned OtherProdReg = MI.getOperand(OtherProdOp).getReg();
+        Register KilledProdReg = MI.getOperand(KilledProdOp).getReg();
+        Register OtherProdReg = MI.getOperand(OtherProdOp).getReg();
 
         unsigned AddSubReg = AddendMI->getOperand(1).getSubReg();
         unsigned KilledProdSubReg = MI.getOperand(KilledProdOp).getSubReg();